There are
2,763 mi
from Allentown, PA to Auburn, WA
That's the driving distance. It would take 2 days 1 hour to go from Allentown, Pennsylvania to Auburn, Washington.
The flight distance (direct flight from Allentown, PA to Auburn, WA) is 2,333.86 mi.
2,763 mi = 4,446.56 kms